/*- * Copyright (c) 2003-2007 Tim Kientzle * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "test.h" __FBSDID("$FreeBSD: src/lib/libarchive/test/test_compat_tar_hardlink.c,v 1.3 2008/08/11 01:19:36 kientzle Exp $"); /* * Background: There are two written standards for the tar file format. * The first is the POSIX 1988 "ustar" format, the second is the 2001 * "pax extended" format that builds on the "ustar" format by adding * support for generic additional attributes. Buried in the details * is one frustrating incompatibility: The 1988 standard says that * tar readers MUST ignore the size field on hardlink entries; the * 2001 standard says that tar readers MUST obey the size field on * hardlink entries. libarchive tries to navigate this particular * minefield by using auto-detect logic to guess whether it should * or should not obey the size field. * * This test tries to probe the boundaries of such handling; the test * archives here were adapted from real archives created by real * tar implementations that are (as of early 2008) apparently still * in use. */ static void test_compat_tar_hardlink_1(void) { char name[] = "test_compat_tar_hardlink_1.tar"; struct archive_entry *ae; struct archive *a; assert((a = archive_read_new()) != NULL); assertEqualIntA(a, ARCHIVE_OK, archive_read_support_compression_all(a)); assertEqualIntA(a, ARCHIVE_OK, archive_read_support_format_all(a)); extract_reference_file(name); assertEqualIntA(a, ARCHIVE_OK, archive_read_open_filename(a, name, 10240)); /* Read first entry, which is a regular file. */ assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae)); assertEqualString("xmcd-3.3.2/docs_d/READMf", archive_entry_pathname(ae)); assertEqualString(NULL, archive_entry_hardlink(ae)); assertEqualInt(321, archive_entry_size(ae)); assertEqualInt(1082575645, archive_entry_mtime(ae)); assertEqualInt(1851, archive_entry_uid(ae)); assertEqualInt(3, archive_entry_gid(ae)); assertEqualInt(0100444, archive_entry_mode(ae)); /* Read second entry, which is a hard link at the end of archive. */ assertEqualIntA(a, ARCHIVE_OK, archive_read_next_header(a, &ae)); assertEqualString("xmcd-3.3.2/README", archive_entry_pathname(ae)); assertEqualString( "xmcd-3.3.2/docs_d/READMf", archive_entry_hardlink(ae)); assertEqualInt(0, archive_entry_size(ae)); assertEqualInt(1082575645, archive_entry_mtime(ae)); assertEqualInt(1851, archive_entry_uid(ae)); assertEqualInt(3, archive_entry_gid(ae)); assertEqualInt(0100444, archive_entry_mode(ae)); /* Verify the end-of-archive. */ /* * This failed in libarchive 2.4.12 because the tar reader * tried to obey the size field for the hard link and ended * up running past the end of the file. */ assertEqualIntA(a, ARCHIVE_EOF, archive_read_next_header(a, &ae)); /* Verify that the format detection worked. */ assertEqualInt(archive_compression(a), ARCHIVE_COMPRESSION_NONE); assertEqualInt(archive_format(a), ARCHIVE_FORMAT_TAR); assertEqualInt(ARCHIVE_OK, archive_read_close(a)); #if ARCHIVE_VERSION_NUMBER < 2000000 archive_read_finish(a); #else assertEqualInt(ARCHIVE_OK, archive_read_finish(a)); #endif } DEFINE_TEST(test_compat_tar_hardlink) { test_compat_tar_hardlink_1(); }